[Romulus]

It is so hard to answer questions like this because people are very different, and respond differently to what's out there. If you're looking for devotional or instructional texts, I can't contribute anything beyond what's already been mentioned. But there are those (and I am one) who approach faith and the Church from an aesthetic and symbolic POV. I have enthusiastically promoted the collected letters of Flannery O'Connor, The Habit of Being (edited by Sally Fitzgerald), and recommend them to you as well. O'Connor is neither mystic nor saint, but she is a first-rate Catholic apologist who's in touch not only with the Church's official doctrine, but with the wider, imaginative view of the Church as conduit of a terrible, transforming grace that would shock to the core those devout but rote believers who defend her and from whom she is defended in turn.

[history_matters]

I would say St. Augustine's Confessions. I don't leave home without it. : ^ )

[history_matters]

I would say St. Augustine's Confessions. I don't leave home without it. : ^ )